2011 was all about the numbers in mobile – over 100 million apps now available for download, 700,000 new Android devices activated everyday, the release of the iPhone4 and Google 4.0 OS, and the loss of one invaluable titan of tech.

With numerous applications being released daily, developers are driving innovation and pushing the limits of the latest and greatest handheld devices, but we took a look back at some of the apps we use on a regular basis and try to uncover what exactly earned them a place on our home screens over the past 365.

This music search and discovery app uses Sound2Sound technology to recognize various sounds including music and speech, offering a speedy and accurate way to help you detect songs. They also integrate with Apple’s iCloud to sync your music and search history across all iOS devices.

The premise is simple: take photos, apply filters and share with your friends. Instagram has been a huge hit with users and allows you to share your photos through Facebook, Twitter, Foursquare, and Tumblr.

The free online personal finance service has been touted as one of the best finance apps and became the #1 iTunes Finance app on the day it launched. It allows you to check your accounts and budgets on the fly to help you with those impulse buys.

The mobile app for the world’s largest social network allows friends to stay even more connected. With the launch of the timeline, the iPhone app includes the ability to view profile Timelines, Subscribers, Subscriptions, and pop-over notifications.

In this addictive game, you must traverse through rope obstacles and feed the little green creature his candy. Cut the Rope garners about 1.6 million unique users daily, and it is no surprise that it continues to remain in the app store’s top 10.

The mobile app version of the popular review and recommendation site allows users to take advantage of the iPhone’s GPS capabilities. Reviews, tips and photos will be listed based on a user’s location so you can find something for you nearby.

This gladiator themed combat game lives up to its name with blood soaked images of swords and nonstop violence. You get your selection of weapons and armor tailored to different fighting styles, all helping you to earn the Invictus medals in tournaments. The gaming experience is heightened with in-app buys for new weapons.

This popular flight and hotel search site has its accompanying mobile app that gives users a trip management tool, a better user interface and faster way to search. There is also an added car rental search and an autofill assistant to help complete your purchases on airline and hotel web sites. Planning your next vacation has never been easier.

This note taking app has been in the app store for a while, but has undergone many changes since launch. The home screen now shows previews of your notes, making it quick and easy to see your reminders. With the ability to take notes, record audio and include photos in a single note, you won’t forget a thing.

This essential app lets you scan product bar codes, QR codes and will even search Google for product results. Not only can you get valuable product information, but QR codes store a wealth of information such as calendar events, contact information and URLs.

Ever get stuck in the dark and need a quick flashlight to help you find something? With this app, you can turn your trusty device into a flashlight. It is the most popular light on the market and supports a wide range of Android devices.

The recently debuted Skype for Android app works over both WiFi and 3G data connections so you can always be in touch with your contacts around the globe. You can video call friends and family as well as share picture and video messages.

This cross-platform mobile messaging app allows you to share SMS messages with your friends at no charge. It syncs automatically with your contact list and you can initiate group chats to share multimedia or plan your next outing.

This app allows for free voice and video calls between Android, iOS, Windows Phone and PCs as well as free international calls to other Tango members. You can also leave video messages for when your friends don’t pick up.

File sharing has never been easier, with the DropBox app you can instantly sync your files through the cloud so they are constantly up to date. You also have the option to automatically send files to DropBox from other apps to ensure your photos, videos and documents are always there.

Use your finger to navigate the sword and slash through flying fruit while avoiding any obstacles that try to get in your way! This addictive game has remained in the top of the appstore and homescreens of users around the world.

For all you football fans, this is the one stop professional and college football app to let you follow your favorite teams. There are live telecasts of college games from NBC as well as fantasy team management and real-time player tracking.

The official Twitter app allows you to follow your interests and keep up to date with breaking news and updates. The pull-to-refresh and swipe-to-reveal features make it more intuitive to use and makes viewing your timeline much faster.

See What People
Are Saying

“T-Mobile was able to delight customers with a fun game that could work across virtually any phone, with Velti making it possible. Velti was great to work with & their commitment to the success of the program was excellent.”
- Chad Hodge, T-Mobile USA

“The thing I love about Mobclix is its simplicity--sign up & you have instant access to over 35 ad networks. Not only that, but I’ve already seen a 400% increase in revenue from March, and 12M impressions a week!”
- Alex Keim, Creator of Pic Stitch, Big Blue Clip

"Mobclix greatly helps manage & control the quality of our ads, and as a result, our Fruit Ninja app made over $400,000 in April 2012 alone off of ad-network sales."
- Jared Oats, Advertising Manager, Halfbrick

“TinyCo is thrilled to be working with the Velti Exchange—we’ve seen great results from the campaigns we’ve run so far and are excited about the future of our relationship!”
- Growth & User Acquisition Team, Tinyco

“We strongly believe that mobile marketing and advertising is here and we have already taken the first successful steps in partnering with Velti in this new era for the mobile industry.”
- MTC Russia

“Velti has shown consistent respect for policies and procedures, in addition to designing and implementing the campaigns. We look forward to continuing this fruitful cooperation in the future.”
- MBC Group